dyno basics · FF-0290

How does an engine dyno keep the water temperature steady?

Robert King explains that the big water tank behind the dyno acts as the radiator. A valve at the bottom frequently pulls in water to keep the temperature consistent, because if the water temperature climbs the dyno will give a different horsepower number. Holding it within a set range lets him make pass after pass that can be compared.

Expert

Robert King

Evidence

expert attributed

Component

dyno cooling system

Applicable scope

Steve Coppock's supercharged 8BA-style Ford Flathead V8, about 290 cubic inches, on the engine dyno at Klein Engines